Except for a single very powerful radio emission aimed at Jupiter, the four-million year old black monolith has remained completely inert. Its origin and purpose are still a total mystery...
Regards,
Cryptologist, linguists and science nerds, after years of research, have concluded that that it is a billboard, and that the radio emission is a commercial jingle: “For juicy brains and docile slaves, try planet Earth and save, save, save...”